1.2703 Tool Die Steels

1.2703 - Specification & Application

Alloyed NiCr steel

Chemical composition(wt.%) of 1.2703 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.70 0.78
Si 0.10 0.25
Mn 0.35 0.45
P - 0.035
S - 0.035
Cr 0.20 0.30
Mo - -
V - -
Ni 0.50 0.60

1.2703 - Detail

Alloyed NiCr steel

Mechanical properties of grade 1.2703

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
881 (≥) 831 (≥) 23 24 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical properties of grade 1.2703

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
137 (≥) 886 (≥) 41 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 421
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
996 331 938

Equivalent Grade

Equivalent Products

We can customize the production of 1.2703 grade, contact us for the best solution.
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